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Blinking Lights on the HP 100 Officejet Mobile Printers

To resolve the issue, use either the interactive control panel or follow the steps in the document.

The lights on the front of the printer indicate the printer status. These lights can be on, off, or blinking (flashing), depending on the status of the printer. Blinking lights can indicate error conditions. They might also indicate that the printer is starting up, processing a print job, or charging batteries.

Figure : Control panel buttons and lights

Battery Status light

Battery Charging light

Left Cartridge light

Right Cartridge light

Bluetooth light

Cancel button

Resume light

Power light

The following sections describe the most common issues related to the light patterns on your printer. Find the issue related to the blinking lights pattern you are experiencing, and then follow the steps to resolve the issue.

If you installed the printer battery, remove it from the rear of the printer.

Figure : Remove the battery

Slide the battery release slider to the left

Remove the battery

Gently tilt the printer onto its side, and then locate the ink service module on the bottom of the printer.

note:

Do not turn the printer upside down when removing the ink service module as this might cause wet ink to flow out of the module. To avoid ink stains on hands or furniture, wear plastic gloves when removing the ink service module.

Press and slide the ink service module notch with a screwdriver.

Figure : Press and slide the notch with a screwdriver

Rotate the ink service module to the left to remove it.

Figure : Remove the ink service module

Remove the new ink service module from the package.

Install the new ink service module.

If you previously installed the battery, reinstall the battery to the rear of the printer.

Figure : Reinstall the battery

Slide the battery into the slot at an angle until the battery contacts are flush with the contacts.

note:

Follow these steps to clear the paper jam from the front of the printer.

Press the Power button to turn off the printer.

Unplug the power cord from the power strip or wall outlet.

Gently remove any jammed paper and bits of torn paper that are visible from the output slot. Use both hands to pull whole sheets of paper to avoid tearing them.

note:

Use a flashlight to thoroughly check the rollers and wheels for torn pieces of paper that might remain inside the output slot. If any torn pieces of paper remain inside the printer, more jams are likely to occur.

Plug the power cord back into the power source or wall outlet.

If the printer does not turn on by itself, press the Power button to turn it on.

Load plain paper into the input tray.

Figure : Load paper

Press the Resume button (). The printer continues printing the next page of the print job. Resend the page or pages
that were jammed.

If you cannot remove the paper jam from the output slot, follow these steps to remove any jammed paper from inside the printer.

Remove any loose sheets of paper from the input tray and the output slot.

Press the Power button to turn on the printer, if it is not already on.

Open the front access cover.

Figure : Open the front access cover

Wait for the carriage to move to the center access area.

Unplug the power cord from the power source or wall outlet.

warning:

You must unplug the power cord to manually move the carriage and reset the paper feed mechanism without risk of electrical shock.

If the carriage is obstructing the jam, manually move it to one side.

Gently remove any jammed paper and bits of torn paper from inside the printer. Use both hands to pull whole sheets of paper to avoid tearing them.

note:

Use a flashlight to thoroughly check the rollers and wheels for torn pieces of paper that might remain inside the printer. If any torn pieces of paper remain inside the printer, more jams are likely to occur.

Plug the power cord back into the power source or wall outlet.

If the printer does not turn on by itself, press the Power button to turn it on.

Load plain paper into the input tray.

Figure : Load paper

Press the Resume button (). The printer continues printing the next page of the print job. Resend the page or pages
that were jammed.

note:

Follow these steps to clear the paper jam from the front of the printer.

Press the Power button to turn off the printer.

Unplug the power cord from the power strip or wall outlet.

Gently remove any jammed paper and bits of torn paper that are visible from the output slot. Use both hands to pull whole sheets of paper to avoid tearing them.

note:

Use a flashlight to thoroughly check the rollers and wheels for torn pieces of paper that might remain inside the output slot. If any torn pieces of paper remain inside the printer, more jams are likely to occur.

Plug the power cord back into the power source or wall outlet.

If the printer does not turn on by itself, press the Power button to turn it on.

Load plain paper into the input tray.

Figure : Load paper

Press the Resume button (). The printer continues printing the next page of the print job. Resend the page or pages
that were jammed.

If you cannot remove the paper jam from the output slot, follow these steps to remove any jammed paper from inside the printer.

Remove any loose sheets of paper from the input tray and the output slot.

Press the Power button to turn on the printer.

Open the front access cover.

Figure : Open the front access cover

Wait for the carriage to move to the center access area.

Unplug the power cord from the power source or wall outlet.

warning:

You must unplug the power cord to manually move the carriage and reset the paper feed mechanism without risk of electrical shock.

If the carriage is obstructing the jam, manually move it to one side.

Gently remove any jammed paper and bits of torn paper from inside the printer. Use both hands to pull whole sheets of paper to avoid tearing them.

note:

Use a flashlight to thoroughly check the rollers and wheels for torn pieces of paper that might remain inside the printer. If any torn pieces of paper remain inside the printer, more jams are likely to occur.

Plug the power cord back into the power source or wall outlet.

If the printer does not turn on by itself, press the Power button to turn it on.

Load plain paper into the input tray.

Figure : Load paper

Press the Resume button (). The printer continues printing the next page of the print job. Resend the page or pages
that were jammed.

The Power light and the Resume light are blinking. After
you press and hold the Cancel button () for
three seconds, the Left Cartridge light is on and the Right Cartridge light is blinking. The message 'Replace Ink Service Module As Soon As Possible' might display on the computer.

The following light pattern displays on the printer control panel:

Battery Status light: Off

Battery Charging light: Off

Left Cartridge light: On

Right Cartridge light: Blinking

Bluetooth light: Off

Resume light: Blinking

Power light: Blinking

Figure : The Resume and the Power light are blinking

After you
press and hold the Cancel button () for
three seconds, the Left Cartridge light is on,
and the Right Cartridge light is blinking.

Figure : The Left Cartridge light is on and the Right Cartridge light is blinking

If you installed the printer battery, remove it from the rear of the printer.

Figure : Remove the battery

Slide the battery release slider to the left

Remove the battery

Gently tilt the printer onto its side, and then locate the ink service module on the bottom of the printer.

note:

Do not turn the printer upside down when removing the ink service module as this might cause wet ink to flow out of the module. To avoid ink stains on hands or furniture, wear plastic gloves when removing the ink service module.

Press and slide the ink service module notch with a screwdriver.

Figure : Press and slide the notch with a screwdriver

Rotate the ink service module to the left to remove it.

Figure : Remove the ink service module

Remove the new ink service module from the package.

Install the new ink service module.

If you previously installed the battery, reinstall the battery to the rear of the printer.

Figure : Reinstall the battery

Slide the battery into the slot at an angle until the battery contacts are flush with the contacts.

You can remove the black cartridge and continue printing with only the tri-color cartridge. This is called printing in Reserve Mode. However, this is a temporary workaround only. The ink service module needs to be replaced as soon as possible.

note:

Printing in Reserve Mode might affect the color results and the print speed.

Follow these steps to remove the black cartridge.

Open the front access cover. Wait until the carriage is idle and silent before proceeding.

Figure : Open the front access cover

Lift the right cartridge latch to release the black cartridge from the slot, and then gently pull the cartridge up and out to remove it.

Figure : Remove the black cartridge

Close the right cartridge latch.

Close the front access cover.

note:

Wait until the printer is idle and silent before trying to print again.

The Power light and the Resume light are blinking. After
you press and hold the Cancel button () for
three seconds, the Left and the Right Cartridge lights are blinking. The message 'Replace Ink Service Module Immediately' might display on the computer.

The following light pattern displays on the printer control panel:

Battery Status light: Off

Battery Charging light: Off

Left Cartridge light: Blinking

Right Cartridge light: Blinking

Bluetooth light: Off

Resume light: Blinking

Power light: Blinking

Figure : The Resume Light and the Power light blink

After
you press and hold the Cancel button () for
three seconds, the Left and the Right Cartridge lights are blinking.

If you installed the printer battery, remove it from the rear of the printer.

Figure : Remove the battery

Slide the battery release slider to the left

Remove the battery

Gently tilt the printer onto its side, and then locate the ink service module on the bottom of the printer.

note:

Do not turn the printer upside down when removing the ink service module as this might cause wet ink to flow out of the module. To avoid ink stains on hands or furniture, wear plastic gloves when removing the ink service module.

Press and slide the ink service module notch with a screwdriver.

Figure : Press and slide the notch with a screwdriver

Rotate the ink service module to the left to remove it.

Figure : Remove the ink service module

Remove the new ink service module from the package.

Install the new ink service module.

If you previously installed the battery, reinstall the battery to the rear of the printer.

Figure : Reinstall the battery

Slide the battery into the slot at an angle until the battery contacts are flush with the contacts.

You can remove the black cartridge and continue printing with only the tri-color cartridge. This is called printing in Reserve Mode. However, this is a temporary workaround only. The ink service module needs to be replaced as soon as possible.

note:

Printing in Reserve Mode might affect the color results and the print speed.

Follow these steps to remove the black cartridge.

Open the front access cover. Wait until the carriage is idle and silent before proceeding.

Figure : Open the front access cover

Lift the right cartridge latch to release the black cartridge from the slot, and then gently pull the cartridge up and out to remove it.

Figure : Remove the black cartridge

Close the right cartridge latch.

Close the front access cover.

note:

Wait until the printer is idle and silent before trying to print again.

Important: Follow these solutions in the order presented to resolve the issue.

note:

If the Left Cartridge light blinks, there is an issue with the tri-color cartridge. If the Right Cartridge light blinks, there is an issue with the black or photo cartridge. See messages displayed on the computer for further instructions.

Improper placement or incorrect installation of the cartridges might cause a cartridge error. Follow these steps to remove and then reinsert the cartridge that corresponds to the blinking cartridge light.

The following instructions assume that you are using genuine HP cartridges.

HP recommends that you use genuine HP cartridges. HP cannot guarantee the quality or reliability of non-HP cartridges. If you are not using genuine HP cartridges, the following solutions might not resolve the issue.

Improper placement or incorrect installation of the cartridges might cause a cartridge error. Follow these steps to remove and then reinsert the cartridge that corresponds to the blinking cartridge light.